Agreed, we finally have a reason to covet rings of fire. It's a nice touch that fire magic is disabled in her realm.
The ice statues hit really hard. I was L16 when I entered the moathouse and got my ass nearly handed to me by them. I used up 4 potions of extra healing clearing the first treasure room, then bugged out and returned when I was level 25. But I was happy to snag the crown of ice.
I finally did got a character far enough to do this quest, and I have to say I really enjoyed it. :-) The Haggar quest worked, I encountered a GUV on the penultimate level and a huge wand shop on level 1.
I was hoping I could talk to her about poor Ygazz, but she doesn't want to chat. I think it would be cool if you could ask her about various items and NPCs, like Thrundarr, and she responds with a bit of lore and backstory.